Playing-ball.



- No. 761,590] V PATENTED MAY 31, 1904.

I E. KEMPSHALL.

PLAYING BALL.- APBLIOAT ION FILED DBO. 14, 1903. N0 MODEL.

THE NOIRIS PGYERS'OO. PHOYOJJTHOY, WASNINUTQN. D. c.

To all whom it may concern:

Patented May 31, 1904.

PATENT OFFICE.

ELEAZER KEMPSHALL, OF BOSTON, MASSACHUSETTS.

' PLAYING-BALL.

SPECIFICATION forming part of Letters Patent No; 761,590, dated'May 31, 1904. Application filed December 14, 1903- Serial No. 185,045. (No model.)

Be it known that I, ELEAZER'KEMP HALL, a

citizen of the United States,residing in Boston,

in the county of Suffolk and State ofMassachusetts, have invented certain new'and useful Improvements in Playing-Balls, of which the following is a specification."

This invention relates to playing-balls, and has for its object to furnish a core and center piece therefor of improved construction.

In the drawing there is shown a ball partly broken away and embodying my invention.

In building up the ball I take a suitable quantity of elastic fibrous material 1, preferably hair, and also a strip 2 of elastic gum, preferably rubber, and begin to form a sphere with a very small center piece-such, for instance, as can be conveniently held in the fingersand I wind said strip 2 in miscellaneous directions layer over layer, intermingling at the same time therein portions of the fibrous material, which by the next succeeding winding of the strip is confined into place, the fiber being overlapped again and again by the repeated windings of the tensioned strand, which are thus separated at most points throughout the core by the fiber that is placed firmly into it by the said windings of said tensioned strands and held under compression thereby. After continuing this operation-for a suflicient length of time whereby to produce the foundation or sphere 3 I continue to wind, preferably,"the same strip 2 under high tension and preferably leave out the fiber, so as to build up a solid layer 4: of rubber. When the ball-core is built up to a suitable size and preferably in the manner herein set forth, the same is inclosed in a shell 5, of any suitable plastic materialsuch, for instance, as guttapercha and for the purposes of rendering the ball highly efficient this shell 5 may be compressed upon the ball-core, so as to hold the same under compression while it distends the shell. The rubber employed may be in any suitable form-for instance, in the form of bands, "threads, or strips -and this rubber is preferably cured 'rubbersuch, for instance, as acid-cured or well-vulcanized rubber. In practice Ifind that this method of building up a center piece, from fibrous material for the playing-ball, more especially for golf-balls, produces a center piece or ballcore of desirable and efficient character and.

portion of the strands which is involved in the center piece 3 may be continued into a layer 4, so that it can be said that the strand of the two members connects or is continuous, and thereby one portion holds the other from retraction. It will be noted that by reason of this feature of my improvements a single-tensioned strand will extend from or nearly from the middle part of the ball to the outer part thereof, and hence in such case the member 3, together with the member 4, may properly be made of the continuing windings, the first portion of the windings preferably being interspersed with an elastic fibrous material and the outer portion of the windings being solidly wound to form the main resilient mass of the completed ball.

' Having thus described my invention I claim- 1. A playing-ball comprising a center piece built up of windings of elastic material, fibrous material interspersed in said windings, and held under pressure thereby, .a layer of rubber thereon, and a suitable inclosing shell.

2. A playing-ball comprising a center piece built up of a continuous winding in miscellaneous directions of cured-rubber strip,fibrous material interspered in said windings, and a suitable inclosing shell.

3. Aplaying-ball comprising a center piece built up of a continuous winding in miscellaneous directions of cured-rubber strip,fibrous material interspersed in said windings, said strip being continued into windings in miscellaneous directions to form a layer over said center piece, and a shell.

- 4:. A playing-ballcomprisinga centerpiece built up of a continuous Winding in miscellaneous directions of cured-rubber strip, fibrous material interspersed in said windings, said strip being continued into tense windings in miscellaneous directions to form a tense layer over said center piece, and a shell.

5. A playing-ball comprising a center piece built up of fibrous material suitably compressed by intermingled windings of elastic material, anda suitable inclosing shell.

6. A playing-ball comprising a center piece built up of windings of hair suitably compressed by intermingled windings of elastic material, and an inclosing shell.

- 7. A playing-ball comprising a center piece built up of fibrous material suitably compressed by intermingled windings of cured rubber, a suitable layer of highly-tensioned cured rubber on said center piece, and an inelosing shell.

8. A playing-ball comprisinga center piece built up of hair suitably compressed and intermingled in windings of cured rubber, and an inelosing shell.

9. A playing-ball comprising a center piece built up of hair suitably intermingled and compressed by windings of cured rubber, a suitable layer of cured rubber on said centerpiece and an inclosing shell.

10. A playing-ball comprising a center piece consisting of fibrous material held under compression by intermingled tense windings of cured-rubber strip.

11. A playing-ball having a center piece built up of fibrous material held under compression by and intermingled with tense windings of rubber strip, a layer thereon formed by continuing the said strip windings under high tension in miscellaneous directions, and an inclosing shell.

ELEAZER KEMPSHALL.

\Vitnesses:

FRED. W. BARNACLO, FRANCIS H. RICHARDS. 

